1974149284319 has 2 divisors, whose sum is σ = 1974149284320. Its totient is φ = 1974149284318.

The previous prime is 1974149284241. The next prime is 1974149284391. The reversal of 1974149284319 is 9134829414791.

Together with next prime (1974149284391) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974149284319 is a prime.

It is a super-2 number, since 2×1974149284319² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1974149784319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987074642159 + 987074642160.

It is an arithmetic number, because the mean of its divisors is an integer number (987074642160).

Almost surely, 2^{1974149284319} is an apocalyptic number.

1974149284319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974149284319 is an equidigital number, since it uses as much as digits as its factorization.

1974149284319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 62.

The spelling of 1974149284319 in words is "one trillion, nine hundred seventy-four billion, one hundred forty-nine million, two hundred eighty-four thousand, three hundred nineteen".